Receptacle for ethyl chlorid.



No. 70|,274. Patented May 27, |902.

L. SCHWARTZ.

REGEPTACLE F08 ETHYL CHLORID.

(Application led Feb. 6, 1902.)

(No Model.)

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UNITED STATES PATENT OFFICE.'

vLOUIS SCIIVARTZ, OF NEW YORK, N. Y., ASSIGNOR TO EAGLE CHEMICAL "WORKS, OF SECAUCUS, NEW JERSEY, A CORPORATION OF NEW JERSEY.

RECEPTACLE FOR ETH-YL CHLORID.

SPECIFICATION forming part of Letters Patent No. 701,274, dated May 27, 1902.

To a/ZZ whom t may concern:

Beit known that I, LoUIs SCHWARTZ, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented new and useful Improvements in Receptacles for Ethyl Chlorid, of which the following is a full, clear, and exact description.

My invention relates to improvements in receptacles for ethyl chlorid and other iiuids# such, for example, as in devices for use by dentists or surgeons for producing local anesthesia; and one object that I have in view is to provide an improvedform of spray-nozzle for a receptacle adapted to contain a highlyvolatile iiuid, such as a fluid of the class described, said spray nozzle adapted to so tightly close the receptacle as to thoroughly prevent the escape of the liuid.

A further object of the Vinvention is to provide a nozzle with packing means oi' a character which will not be affected by or deteriorate under the influence of the iiuid contained in the receptacle; and a further obj ect is to provide an improved form oi' nozzle by which streams or jets of the fluid may be projected on converging lines to a certain part in which it is desired to produce local anestl1esia-'-as, for instance, in dental surgery.

With these ends in view the invention conslsts in the novel construction, arrangement, and combination of parts which will be hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure l is a side elevation of a receptacle equipped with a spray device as contemplated in one embodiment of my invention. Fig. 2 is another side elevation showing a receptacle equipped with two forms oi' spray devices also i as contemplated by the present invention. Fig. 3 is an enlarged vertical section through one form of the spray device, showing it in the open or active position. Fig. et is a rear elevation of the adjustable nozzle. Fig. 5 is an enlarged vertical section through another form of the spray device, illustrating the nozzle constructed with capillary passages arranged todirect the jets on converging lines.

Application filed February 6, 1902. Serial No. 92,771. (N0 model-3 Fig. 6 is a detail plan view oi' the adjustable nozzle, illustrating the series of converging branch passages arranged to discharge to one `ot' the two converging jet-passages; and Fig.

7 is a detail section of one means for attaching the metallic tube to the neck of the receptacle.

5 designates the receptacle, which is preferably a glass tube, although the form of the receptacle is not material. As shown'by Fig. l, the receptacle is provided with a contracted neck 6 at one end, and this neck is surrounded by a metallic collar 7. A metallic tube S is inserted in the neck 6 of the receptacle, and said tube 8 is adapted to be sealed in any approved way Within the neck G. The metallic tube S is of a very small diameter as compared with that of the receptacle 5, and said tube is bent at a point outside of the collar 7, so as to form the inclined or angular length 9.

The particular form of the metallic tube 8 and the location of this tube at one end of the receptacle 5 are not material. In Fig. 2 the receptacle is provided at one end with the neck 6 and at its other end with a corresponding neck 6, each neck being surrounded by a metallic collar, the collars for the two necks being indicated at 74 7, respectively. In the neck 6 is sealed the angular or bent tube 8 9; but in the neck 6L is sealed a straight metallic tube 10, the `latter being disposed in the plane of the longitudinal axis of the receptacle 5. The metallic tube or tubes are provided with spray nozzles, the same being shown by Figs. 3 to 6, inclusive. In Figs. l and 2 the spray-nozzles on the bent or angular tubes are adapted to assume positions inclined to the axis of the receptacle, thus making it convenient for the dentist or surgeon to hold the receptacle in a certain position when the Huid is to be directed against the part in which it is desired to produce local anesthesia. The relation of the spray device to the receptacle, however, is not material, and this spray device may be attached to the metallic tubes 10 at the left-hand end of Fig. 2, so that it will occupy va coaxial relation to the receptacle.

I will now proceed to describe the improved form of the spray device, reference being had to Figs. 3 to 6, inclusive. The metallic tube,-

adapted to have the threaded length 11 of the metallic tube screwed therein. The cap 12 is provided with a chamber 14, the same terminating at one end at the collar 13 and the other end of said chamber opening through the opposite end portion of the cap, said chamber being internally screw-threaded, preferably from end to end thereof. The threaded length 1l of the metallic tube is projected or extended into the inner or rear portion of the chamber 14, and on this projecting end of the tube is screwed a plug l5, the latter having a central threaded perforation by which it may be screwed upon the tube. Between the bottom or inner closed end of the chamber 14 and the plug 15 is interposed a metallic washer 16, the latter being of concave-con- Vex form in cross-section and stamped or struck up from a single piece of elastic sheet metal. The edge portion of this elastic washer bears against the inner closed wall of the4 chamber in the cap; but the convex central portion of said washer bears against the adj ustable disk 15, so as to offer resistance to the movement of said disk 15 in au inner direction. The disk is provided with sockets or openings 17, adapted to receive a suitable implement whereby the disk may be screwed on the metallic tube to compress the washer 16 more or less, said washer being adapted to exert tension on the plug or disk in order to crowd the threads of the latter against the threads on the threaded length 11 on the metallic tube. The washer thus coperates with the disk or plugin a manner to thoroughly prevent any leakage of the iiuid between the tube and the cap 12, which is screwed thereon, and as the disk, the washer, and the tube are made of metal said parts will not deteriorate under the influence or action of the liquid with which the receptacle 5 is filled or charged.

18 designates the metallic nozzle, which consists of a cylindrical body and a tapering nozzle portion, said cylindrical body being externally threaded and adapted to be snugly screwed into the female-threaded chamber 14 of the cap. AA cavity or recess 19 is formed centrally in the inner portion of this nozzle, and in said cavity is secured a valve 20. This valve is made of a material which will not be aifected by the action of the fluid in the receptacle, and at the same time the said valve is adapted to be forced tightly against the seat which is formed by the end face of the metallic tube. I have found vulcanized liber to satisfactorily meet the need for a valve l adapted for use under the conditions recited,Y and I therefore prefer to employ a plug or solid body of vulcanized fiber which is seated in the cavity 19 and exposed through the in- V ner face of the nozzle.

The nozzle shown by Figs. 3 and 4 is provided with an axial capillary passage 2l and with a plurality of converging capillary ducts 22, the same having communication at their front ends with the axial passage 2l, and the other ends of said ducts opening through the inner face of the nozzle in a way to form a series of equidistant ports, as indicated by Fig. 4. I prefer, however, to employ a nozzle having converging jet-passages 23 24, as indicated by Fig. 5. These converging jetpassages are supplied with the fluid by a plurality of converging ducts 25, and, as shown by Figs. 5 and 6, these ducts 25 are disposedl in two groups, one group 25 of said ducts being adapted to supply the fluid to one passage 23 and another-group 25 of the ducts being adapted to supply the passage 24. The two groups of ducts open through the inner face of the nozzle, and the liquid is adapted to pass from the chamber 14 into the ducts and thence to the-passages 23 24, whereby two jets are projected by the nozzle on con verging lines.

In` operation it is only necessary to partly unscrew the nozzle 1S Within the threaded cap 12, thereby withdrawing the valve 2O from engagement with the end face or valveseat of the metallic tube. The highly-volatile duid contained in the receptacle escapes readily through the tube 9 and into the chamber 14, from whence it passes into the ducts and through the jet passage or passages of the nozzle. The iiuid can escape only through the nozzle, and it cannot by back pressure pass between the metallic tube and the cap, because the tension exerted by the washer on the disk wholly overcomes any leakage through the spray device at this point. To cut off the escape of the fluid, it is only necessary to screw the nozzle into the cap, and the valve 2O is thus adapted 'to tightly and securely close the sealed metallic tube, thereby preventing any loss of the iiuid by leakage or evaporation. It should also be noted that the plug or disk 15 forces the edge portion of the elastic metallic washer against the inner end of the cap, and the washer thus makes a tight joint around the tube adjacent to the place where the tube passes through the cap, thereby preventing the leakage of the fluid from the cap at the rear closed side thereof.

Instead of sealing the metallic tube directly into the neck 6 or 6 of the receptacle I may adopt the construction shown by Fig.. 7. A threaded metallic nipple 26 is cemented to the neck of the receptacle, and on this nipple is screwed the collar 7 or 7a, the latter being internally threaded for the purpose. The metallic tube and the collar are made in a sin- IOO IIO

gle piece of metal, and the end 27 of the tube is Yextended into the cavity of the collar. Around this end 27 of the tube is iitted a cementitious plug 28, which is adapted to bear against the nipple 26 andto make a tight joint betweenthe collar and the lnipple, the latter being cemented to the receptacle. The cementitious plug is made, preferably, of gelatin, mucilage, and starch, because I have found that a mixture of these ingredients has the peculiar property of hardening under the action of the fluid with which the receptacle l is charged.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. AIn a device of the class described, the combination with a tube, of a cap attached thereto, means substantially as described for making a tight joint between the tube and the cap, and a nozzle screwed in said cap.

2. In a device of the class described, the combination with a tube, of a non-adjustable cap attached to the tube by a threaded joint, means `for locking said cap against rotation and producing a tight joint between the tube and the cap, and a nozzle attached to the cap.

3. In a device of the class described, the combination with a tube, of a non-adjustable cap attached to said tube by a threaded joint,

a washer and nut within said cap and locking the same against rotation on the tube and forming a tight joint between said parts, and a nozzle.

4. In a device of the class described, the combination with a tube, of a non-adjustable chambered cap attached to said tube by a threaded joint, an elastic washer within said chamber of the cap, a nut screwed on the tube and impinging the washer, and a nozzle,I

5. A device of the class described comprising a tube, a cap thereon, a nozzle screwed into said cap and provided with capillary jetpassages and with ltwo series `of capillary ducts, said series of duct-s communicating individually with said jet-passages, and said j et-passages being disposed in converging' relation and opening at different points through the active end or face of the nozzle, and a valve adapted to close the tube.

6. A device of the class described comprising a chambered cap, a nozzle screwed into said cap and provided with converging jet- -passages which are supplied by a plurality of branching ducts adapted to communicate with said chamber, said j et-passages opening at dierent points of the active end or face of the nozzle, and a valve carried by the nozzle within the branching ducts and adapted to close the source of supply to the chamber of said cap.

7. A device of the class described, provided with a threaded tube, a cap screwed to said tube, a disk screwed on the tube, a springwasher acting against said disk and crowding the threads thereof into engagement with the threads of the tube, and an adjustable nozzle attached to the cap.

In testimony whereof I have signed my name to this specification in the presence of `two subscribing witnesses.

LOUIS SCHVARTZ.

Witnesses:

H. T. BERNHARD, EVERARD BOLTON MARSHALL. 

